2001 GMC Sierra Ext Cab speaker sizes?

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midnight wolf

Member - Posts: 13

Joined: April 21, 2005

Location: United States

Posted: April 21, 2005 at 9:04 PM / IP Logged

Hey everyone. Im new here and I have been looking all over for the answer to this question. I have replaced 4 speakers in my truck already. I put new 4X6's in the rear doors and new 6.5" in the front doors. There is another speaker above the 6.5" in the front door and i cant figure out what size it is. I want to put all new speakers in it. What a difference the new speakers make. 100% improvement in sounds quality. Any help is appreciated. THanks

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Lthlquicksilver

Member - Posts: 47

Joined: April 20, 2005

Location: United States

Posted: April 21, 2005 at 11:30 PM / IP Logged

There are two possiblities on those "extra" front speaks.

95% chance they are tweeters (.75 inch to 1.5 inch speakers strictly for high freq.)

4% chance they are 3" drivers AND a tweeter somewhere too (3 way system) - Never seen it in a GMC

1% chance I'm DEAD wrong and don't have a clue what Im talking about

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ss-installer

Silver - Posts: 444

Joined: February 27, 2005

Location: United States

Posted: April 22, 2005 at 8:13 AM / IP Logged

pretty sure they are tweeters. IMO bypass them and put a set of new tweets on the pillar posts.

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Chad7n7

Silver - Posts: 408

Joined: March 09, 2004

Location: United States

Posted: April 22, 2005 at 9:11 PM / IP Logged

They indeed are tweeters. The easiest solution, and best sounding at that, would be to replace the fronts with a component set. Though I am not aware of any aftermarket direct replacement tweeters, you can retrofit almost any component tweeters in that space, a little backstrap and creativity will go a long ways!!

The rear is a 4x6, though I have never replaced those with aftermarket 4x6's, we just cut a little metal on the rear openings and install 6 1/2's in there.

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2001 GMC Sierra Ext Cab speaker sizes?

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